CN208518874U - A kind of plunger and plunger pump having plunger ring - Google Patents
A kind of plunger and plunger pump having plunger ring Download PDFInfo
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- CN208518874U CN208518874U CN201821130373.0U CN201821130373U CN208518874U CN 208518874 U CN208518874 U CN 208518874U CN 201821130373 U CN201821130373 U CN 201821130373U CN 208518874 U CN208518874 U CN 208518874U
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- plunger
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- plunger ring
- piston body
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- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 18
- 239000003921 oil Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of plungers for having plunger ring, it is characterized in that, including piston body and piston shoes main body, one end of piston body is connect with piston shoes main body by bulb-socket arrangement, plunger ring is arranged in the other end of piston body, plunger ring bushing and plunger ring cutting ferrule, wherein, plunger ring bushing and piston body are interference fitted, plunger ring is set on the outside of plunger ring bushing, plunger ring cutting ferrule and piston body are interference fitted, the counterface of plunger ring cutting ferrule is close to the end face of plunger ring bushing, the free end face of plunger ring cutting ferrule and the end face of piston body are concordant；Plunger ring be equipped with opening, plunger ring in a free state its outer diameter be greater than piston body outer diameter；Plunger ring has outside expansionary force, and after plunger has certain fair wear and tear, the seal request that plunger ring still can satisfy pump motor reduces the maintenance cost of equipment to increase the service life of pump motor.
Description
Technical field
The utility model belongs to plunger pump and its part field, and in particular to a kind of plunger and plunger for having plunger ring
Pump.
Background technique
Plunger pump is that a kind of typical positive displacement hydraulic is converted into the mechanical energy of input by prime mover driven
The pressure energy of liquid, then be input in system in the form of pressure, flow, it is the power source of hydraulic system, due to its energy
Liquid is conveyed under high pressure, therefore the various industries in industrial production and daily life are widely used.Plunger horse
Up to a kind of executive component for hydraulic system, the mechanical energy that the liquid pressure energy that it provides hydraulic pump is changed into its output shaft turns
Square and revolving speed.
But existing plunger is mainly integral plunger, will lead to the work effect of plunger pump (motor) after mild wear
Rate decline even can not work normally, and be that non-dismountable formula connects between plunger and piston shoes, and the mechanism of plunger and piston shoes adds
Work difficulty is big, and maintenanceability is poor, when wherein side damage, then needs to replace together together with another party.The prior art be directed to
Upper problem is all without proposing a good solution, also not on how to solving plunger self structure defect relevant issues
Document discuss.
Utility model content
To solve the above problems, the utility model, which provides, provides a kind of plunger and plunger pump for having plunger ring, the plunger
Structure it is simple, by plunger ring bear fluid pressure and pressurization working lumen effect, can be in piston body mild wear
In the case of make plunger pump continue to work normally.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of plunger having plunger ring, including plunger
One end of main body and piston shoes main body, piston body is connect with piston shoes main body by bulb-socket arrangement, the other end of piston body
Plunger ring, plunger ring bushing and plunger ring cutting ferrule are set, wherein plunger ring bushing and piston body are interference fitted, plunger ring
It is set on the outside of plunger ring bushing, plunger ring cutting ferrule and piston body are interference fitted, the counterface and plunger of plunger ring cutting ferrule
The end face of lining papers set is close to, and the free end face of plunger ring cutting ferrule and the end face of piston body are concordant；Plunger ring is equipped with opening, plunger
Ring in a free state its outer diameter be greater than piston body outer diameter.
Plunger ring be provided with along piston body axially spaced-apart it is multiple, between two plunger rings be plunger ring bushing.
Plunger ring bushing is step annulus.
The opening end face of plunger ring is step, the opening of two neighboring plunger ring circumferencial direction present position not
Together.
Plunger ring installation step and the first cylindrical surface, plunger ring are provided on the outside of one end of piston body setting plunger ring
The cooperation of first cylindrical interference of cutting ferrule and piston body, plunger ring cutting ferrule counterface are close to bushing second end face.
Ball-and-socket is arranged in piston shoes main body, and piston body is provided with bulb, plunger backhaul semi-ring, column are additionally provided on the outside of bulb
Getting back into Cheng Banhuan medial surface is spherical surface, and spherical surface is close to bulb.
Ball-and-socket external screw thread is arranged in the outer wall of ball-and-socket, is additionally provided with semi-ring pressing sleeve on the outside of ball-and-socket, sets on the inside of semi-ring pressing sleeve
It is equipped with the internal screw thread to match with ball-and-socket external screw thread, step is additionally provided on the inside of semi-ring pressing sleeve, step is got back into for hold-down column
Cheng Banhuan.
One group of parallel heavy platform is provided on the outside of semi-ring pressing sleeve, piston shoes main body opens up spanner far from one end of semi-ring pressing sleeve
Card slot.
A kind of plunger pump using the plunger with plunger ring.
Compared with prior art, the utility model, which at least has the advantages that, is arranged opening, plunger ring on plunger ring
There is outside expansionary force, plunger ring can be fitted close with plunger case inner sidewall, and after plunger generates fair wear and tear, plunger ring remains unchanged
It can satisfy the seal request of pump motor, plunger ring bushing be set, is coupled plunger with plunger ring bushing, plunger ring is not ground
Piston body is damaged, also plunger ring also facilitates for replacement, and plunger ring cutting ferrule carries out axial restraint to plunger ring and plunger ring bushing, sliding
Boots main body is connect with piston body by bulb-socket arrangement, in the plunger course of work, energy between piston shoes main body and piston body
Enough transmitting axial force reduces the maintenance cost of equipment to increase the service life of pump motor without influencing angulation change.
Further, multiple plunger rings are set, are sealed step by step, significant effect.
Further, plunger ring opening end face is step, when plunger ring is under pressure, step surface mutual extrusion, and shape
At excellent sealing, opening oil leak is avoided.
Further, different circumferencial directions is arranged in the opening of two neighboring plunger ring, by the portion of sealing effect weakness
Dislocation is opened, and sealing effect is further enhanced.
Further, step is set in piston body, is applied by the step of piston body to piston body for plunger ring
Pressure.
Further, plunger ring bushing step prevents plunger ring to be directly installed in piston body, and plunger lining papers
The step of set ensure that the assembly building between plunger ring away from.
Further, piston shoes main body piston body is realized detachable by bulb-socket arrangement and plunger backhaul semi-ring
Connection, is easily changed, and when ball-and-socket is worn in piston shoes, replaces component on piston shoes, avoids traditional plunger assembly and exist
The shortcomings that re-working integrally is needed after some parts depreciation, maintenanceability is stronger, saves processing cost, high yield rate.
Further, semi-ring pressing sleeve is stablized, is convenient for by screw threads for fastening plunger backhaul semi-ring and ball-and-socket end face, connection type
Disassembly.
Further, heavy platform is set on semi-ring pressing sleeve, blocks semi-ring pressing sleeve convenient for spanner and is mounted and dismounted；Piston shoes master
One end of body opens up spanner card slot, so that piston shoes main body and piston body convenient disassembly.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model；
The main view of Fig. 2 the utility model；
The partial enlarged view E of Fig. 3 Fig. 2；
The half-section diagram of Fig. 4 the utility model；
The C-C cross-sectional view of Fig. 5 Fig. 4；
The partial enlarged view F of Fig. 6 Fig. 4；
The structural schematic diagram when assembly of Fig. 7 the utility model uses；
The partial enlarged view G of Fig. 8 Fig. 7；
The half-section diagram when assembly of Fig. 9 the utility model uses；
The partial enlarged view H of Figure 10 Fig. 9；
Half-section diagram of Figure 11 the utility model when plunger ring is adjacent to plunger ring one side end face of cutting ferrule when in use；
The partial enlarged view I of Figure 12 Figure 11；
Half-section diagram of Figure 13 the utility model when plunger ring is adjacent to one side end face of bulb when in use；
The partial enlarged view J of Figure 14 Figure 13；
The structural schematic diagram of Figure 15 the utility model piston body；
Figure 16 the utility model piston body half-section diagram；
Figure 17 the utility model piston shoes main structure spanner card slot side schematic diagram；
Figure 18 the utility model piston shoes main structure ball-and-socket side schematic diagram；
Figure 19 the utility model piston shoes main body half-section diagram；
The structure semi-ring second end face side schematic diagram of Figure 20 the utility model plunger backhaul semi-ring；
The structure semi-ring first end face side schematic diagram of Figure 21 the utility model plunger backhaul semi-ring；
The structural schematic diagram of Figure 22 the utility model semi-ring pressing sleeve；
The structural schematic diagram of Figure 23 the utility model plunger ring；
The step side structural schematic diagram of Figure 24 the utility model plunger ring bushing；
The structural schematic diagram of Figure 25 the utility model plunger ring bushing；
The structural schematic diagram of Figure 26 the utility model plunger ring cutting ferrule；
In attached drawing: 1. piston bodies, 2. piston shoes main bodys, 3. plunger backhaul semi-rings, 4. semi-ring pressing sleeves, 5. plunger rings, 6. columns
Plug ring bushing, 7. plunger ring cutting ferrules, 8. plunger ring installation steps, 9. first cylindrical surfaces, 10. step end faces, 11. bulbs, 12. balls
Nest, 13. backhaul semi-ring counterfaces, 14. ball-and-socket external screw threads, 15. spanner card slots, 16. spherical surfaces, 17. semi-ring first end faces, 18.
Semi-ring second end face, 19. internal screw threads, 20. backhaul semi-rings cooperate inner face, 21. heavy platforms, 22. plunger ring internal circular surfaces, 23. columns
Plug ring outer round surface, 24. free opens, 25. end-gaps, 26. bushing steps, 27. bushing first end faces, 28. bushings second
End face, 29. sleeve inner surfaces, 30. cutting ferrule counterfaces, 31. cutting ferrule inner surfaces, 32. plunger ring fit-up gaps, 33. plunger masters
Body and plunger case gap, 34. plunger cases.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
With reference to Fig. 1~4, a kind of plunger having plunger ring, including piston body 1 and piston shoes main body 2, the one of piston body 1
End is connect with piston shoes main body 2 by bulb-socket arrangement, the other end of piston body 1 be arranged plunger ring 5, plunger ring bushing 6 with
And plunger ring cutting ferrule 7, wherein plunger ring bushing 6 and piston body 1 are interference fitted, and plunger ring 5 is set in outside plunger ring bushing 6
Side, plunger ring cutting ferrule 7 and piston body 1 are interference fitted, and the end face of the counterface and plunger ring bushing 6 of plunger ring cutting ferrule 7 is tight
Patch, the free end face of plunger ring cutting ferrule 7 are concordant with the end face of piston body 1；Plunger ring 5 is equipped with opening, and plunger ring 5 is in free shape
Its outer diameter is greater than the outer diameter of piston body 1 under state；Plunger ring 5 is provided with multiple, two plunger rings along 1 axially spaced-apart of piston body
It is plunger ring bushing 6 between 5, plunger ring bushing 6 is step annulus；The opening end face of plunger ring 5 be step, adjacent two
Circumferential position is different where the opening of a plunger ring 5, and piston body 1, which is arranged on the outside of one end of plunger ring 5, is provided with plunger ring peace
Fill step 8 and the first cylindrical surface 9, the first cylindrical surface 9 interference fit of plunger ring cutting ferrule 7 and piston body 1, plunger ring cutting ferrule
Counterface 30 is close to bushing second end face 28；Ball-and-socket 12 is arranged in piston shoes main body 2, and piston body 1 is provided with bulb 11, bulb 11
Outside be additionally provided with plunger backhaul semi-ring 3,3 medial surface of plunger backhaul semi-ring is spherical surface 16, and spherical surface 16 is close to bulb 11, ball-and-socket
Ball-and-socket external screw thread 14 is arranged in 12 outer wall, and semi-ring pressing sleeve 4 is arranged in the outside of ball-and-socket 12, and the inside of semi-ring pressing sleeve 4 is provided with and ball
The internal screw thread that nest external screw thread 14 matches, the inside of semi-ring pressing sleeve 4 are additionally provided with step, and step gets back into Cheng Banhuan for hold-down column
3, the outside of semi-ring pressing sleeve 4 is provided with one group of parallel heavy platform, and one end of piston shoes main body 2 opens up spanner card slot 15.
As one embodiment of the utility model, a kind of plunger pump, including plunger described in the utility model.
The technical solution adopted in the utility model be a kind of plunger for having plunger ring, including piston body 1, piston shoes main body 2,
Plunger backhaul semi-ring 3, semi-ring pressing sleeve 4, plunger ring 5, plunger ring bushing 6 and plunger ring cutting ferrule 7；Piston body 1 is equipped with plunger ring
Installation step 8, the first cylindrical surface 9, step end face 10 and bulb 11；Piston shoes main body 2 is equipped with ball-and-socket 12, backhaul semi-ring abutting end
Face 13, ball-and-socket external screw thread 14 and spanner card slot 15；Plunger backhaul semi-ring 3 includes spherical surface 16,17 and of semi-ring first end face of inside
Semi-ring second end face 18；Semi-ring pressing sleeve 4 is equipped with internal screw thread, and backhaul semi-ring cooperates inner face 20 and heavy platform 21；
With reference to Figure 23~Figure 26 and Fig. 9, plunger ring 1 includes plunger ring internal circular surfaces 22 and plunger ring outer round surface 23,
And free open is equipped in the case where inoperative, free open is compressed into end-gaps 25 in the case where work, and has
Outward from the elastic force opened；The ball-and-socket 12 of piston shoes main body 2 and the bulb 11 of piston body 1 cooperate, the spherical surface 16 of plunger backhaul semi-ring 3
Cooperate with the bulb 11 of piston body 1, semi-ring first end face 17 and the backhaul semi-ring counterface 13 of plunger backhaul semi-ring 3 are matched
It closes, the semi-ring second end face 18 of plunger backhaul semi-ring and the backhaul semi-ring cooperation inner face 20 of semi-ring pressing sleeve 3 cooperate, semi-ring pressing sleeve
4 internal screw thread 19 and the ball-and-socket external screw thread 14 of piston shoes main body 2 cooperate, the plunger ring installation step 8 of plunger ring 5 and piston body 1
First cylindrical surface 9 of clearance fit, the sleeve inner surface 29 of plunger ring bushing 7 and piston body 1 is interference fitted, plunger ring 5 with
The step clearance of plunger bushing 6 cooperates, and the bushing first end face 27 of plunger ring bushing 6 and the step end face of piston body 1 cooperate,
The bushing second end face 28 of plunger bushing 6 and the bushing first end face 27 of another plunger bushing 7 cooperate, plunger ring cutting ferrule 7
First cylindrical surface 9 of cutting ferrule inner surface 29 and piston body 1 is interference fitted, the cutting ferrule counterface 30 and plunger of plunger cutting ferrule 7
The bushing second end face 28 of bushing 6 cooperates.
Plunger backhaul semi-ring 3 is two semi-rings, and plunger backhaul semi-ring 3 is easily installed when connecting with piston shoes main body 2.
5 free state of plunger ring has free open 24, and in a free state, outer diameter is greater than plunger master to plunger ring 5
The diameter of body 1；In the operating condition, outer diameter is equal to the internal diameter of plunger case 34 to plunger ring 5, between so that free open 24 is become closure
Gap 25, the width of free open 24 are greater than the width of closed-gap 25.
As shown in figure 4, one end of piston shoes main body 2 opens up spanner card slot 15,15 center of spanner card slot offers center
Hole, the centre bore are connected to the axially extending bore of piston body 1；Ball-and-socket is arranged in one end that piston shoes main body 2 is connect with piston body 1
12, the outer wall of ball-and-socket 12 is arranged ball-and-socket external screw thread 14, the inside of semi-ring pressing sleeve 4 is provided with match with ball-and-socket external screw thread 14 in
Screw thread, the inside of semi-ring pressing sleeve 4 are additionally provided with step, and step gets back into Cheng Banhuan 3 for hold-down column；Column is provided on the outside of bulb 11
Cheng Banhuan 3 is got back into, the semi-ring first end face 17 of plunger backhaul semi-ring 3 and the end face of ball-and-socket 12 fit closely, 4 inside of semi-ring pressing sleeve
Step end face compress semi-ring second end face 18.
With reference to Figure 15 and Figure 16, one end of piston body 1 is bulb 11, other end lateral surface be it is ladder-like, from end face to
Middle part is followed successively by the first cylindrical surface 9, step end face 10 and the second cylindrical surface 8, piston body 1 and offers through-hole, ball along axis
The bellmouth at first 11 top is to meet plunger and piston shoes when cooperative movement to the flowing space of hydraulic oil, piston shoes master
Body 2 can be inclined, and after the inclination of piston shoes main body 2, the through-hole of piston shoes main body 2 and the axially extending bore of piston body 1 may
It is staggered completely, at this moment hydraulic oil just can not circulate, therefore bellmouth is opened up in the case where meeting intensity；The bulb of piston body 1
11 tops open up taper hole.
With reference to Fig. 4, Fig. 5 and Figure 17~Figure 22, the ball-and-socket 12 of piston shoes main body 2 and the bulb 11 of piston body 1 cooperate, column
The bulb 11 of the spherical surface 16 and plunger of getting back into Cheng Banhuan 3 cooperates, the semi-ring first end face 17 and piston shoes main body of plunger backhaul semi-ring 3
Backhaul semi-ring counterface 13 cooperates, and semi-ring second end face 18 and the semi-ring pressing sleeve step end face of plunger backhaul semi-ring 3 closely paste
It closes, the internal screw thread 19 and piston shoes main body external screw thread 14 of semi-ring pressing sleeve 4 cooperate, the plunger ring erecting bed of plunger ring 5 and piston body 1
8 clearance fit of rank.
It is spherical surface 16 on the inside of plunger backhaul semi-ring 3, spherical surface 16 is fitted closely with ball head structure, semi-ring first end face 17 and half
Ring second end face 18；Semi-ring pressing sleeve 4 is equipped with internal screw thread 19, plunger backhaul semi-ring 3 cooperates inner face 20 and heavy platform 21；Plunger lining papers
Set 6 is equipped with bushing step 26, bushing first end face 27, bushing second end face 28 and sleeve inner surface 29；Plunger ring cutting ferrule 7 is equipped with
Cutting ferrule counterface 30 and cutting ferrule inner surface 31；The center opening of piston shoes main body 2 is connected to the through-hole of piston body 1.
As shown in figure 23,5 opening end face of plunger ring is step, and when plunger ring 5 is under pressure, step surface is mutually squeezed
Pressure forms excellent sealing, avoids opening oil leak.
As shown in figures 24 and 25, plunger ring bushing 6 includes a step, bushing first end face 27, bushing second end face 28
With sleeve inner surface 29, the diameter of bushing first end face 27 is less than the diameter of bushing second end face 28, bushing first end face 27
Diameter is equal to the diameter of piston body step.
As shown in figure 26, plunger ring cutting ferrule 7 includes cutting ferrule counterface 30 and cutting ferrule inner surface 31.
With reference to Fig. 6~Figure 14, the working principle of the utility model is as follows:
Plunger assembly is in use, be equipped with the gap of piston body and plunger case between piston body 1 and plunger case 34；Plunger
The expansionary force that ring 5 has itself outside, plunger ring outer round surface 23 are close to the inner cavity cavity wall of plunger case 34, plunger ring internal circular surfaces 22
Plunger ring fit-up gap 32 is equipped between plunger ring bushing 6, plunger ring 5 can be interior mobile in a limited space, when plunger ring 5
Any one end face when being close to the step end face in corresponding plunger ring bushing 6 or piston body 1, plunger case 34, plunger master
Between body 1 and plunger ring 5 formed a closed cavity, when plunger in plunger pump in use, oil inlet be full of hydraulic oil, pump
When oil suction, the cavity increases, and plunger ring 5 is close to it close to the end face of 6 side of plunger ring cutting ferrule at this time, hydraulic oil be inhaled by
In the cavity that plunger case 34, piston body 1 and plunger ring 5 form, when plunger motion is to oil discharge outlet side, due to the work of pressure
With plunger ring 5 is close to the end face close to 11 one end of bulb of piston body 1 at this time, and high pressure liquid pressure oil enters plunger ring 5 and column
The plunger ring fit-up gap 32 of plug ring bushing 6 applies pressure to plunger ring internal circular surfaces 22, makes plunger ring outer round surface 23 more
It is adjacent to plunger case 34, achievees the effect that high pressure sealing, so that hydraulic oil is extruded from cavity；
When plunger in pump motor in use, oil inlet is full of high pressure liquid pressure oil, due to the effect of pressure, plunger ring 5 this
When be close to the end face close to 11 side of bulb of piston body 1, and high pressure liquid pressure oil enters plunger ring 5 and plunger ring bushing 6 and fills
With gap, applies pressure to plunger ring internal circular surfaces 22, so that plunger ring outer round surface 23 is more adjacent to plunger case 34, reach high pressure
The effect of sealing, so that piston motor be made to work, when plunger is in oil discharge outlet side, cavity reduces, and plunger ring 5 is close at this time
Close to the end face of 11 side of bulb of piston body 1, so that hydraulic oil is extruded from cavity；When pump motor work,
Hydraulic oil can reach the bottom of piston shoes main body 2 by the cavity of plunger pump and piston shoes main body 2, form static pressure support effect,
Avoid the excessive wear of piston shoes.
Claims (9)
1. a kind of plunger for having plunger ring, which is characterized in that including piston body (1) and piston shoes main body (2), piston body (1)
One end connect with piston shoes main body (2) by bulb-socket arrangement, plunger ring (5), column are arranged in the other end of piston body (1)
Plug ring bushing (6) and plunger ring cutting ferrule (7), wherein plunger ring bushing (6) and piston body (1) are interference fitted, plunger ring
(5) it is set on the outside of plunger ring bushing (6), plunger ring cutting ferrule (7) and piston body (1) are interference fitted, plunger ring cutting ferrule (7)
Counterface is close to the end face of plunger ring bushing (6), the free end face of plunger ring cutting ferrule (7) and the end face of piston body (1)
Concordantly；Plunger ring (5) be equipped with opening, plunger ring (5) in a free state its outer diameter be greater than piston body (1) outer diameter.
2. the plunger according to claim 1 for having plunger ring, which is characterized in that plunger ring (5) is axial along piston body (1)
Be arranged at intervals with it is multiple, between two plunger rings (5) be plunger ring bushing (6).
3. the plunger according to claim 2 for having plunger ring, which is characterized in that plunger ring bushing (6) is step annulus.
4. the plunger according to claim 1 for having plunger ring, which is characterized in that the opening end face of plunger ring (5) is platform
Stepwise, the opening of two neighboring plunger ring (5) is in circumferencial direction present position difference.
5. the plunger according to claim 1 for having plunger ring, which is characterized in that plunger ring (5) are arranged in piston body (1)
It is provided with plunger ring installation step (8) and the first cylindrical surface (9) on the outside of one end, plunger ring cutting ferrule (7) and piston body (1)
First cylindrical surface (9) interference fit, plunger ring cutting ferrule counterface (30) are close to bushing second end face (28).
6. the plunger according to claim 1 for having plunger ring, which is characterized in that ball-and-socket (12) are set in piston shoes main body (2),
Piston body (1) is provided with bulb (11), and plunger backhaul semi-ring (3), plunger backhaul semi-ring are additionally provided on the outside of bulb (11)
(3) medial surface is spherical surface (16), and spherical surface (16) is close to bulb (11).
7. the plunger according to claim 6 for having plunger ring, which is characterized in that the outer spiral shell of outer wall setting ball-and-socket of ball-and-socket (12)
Line (14) is additionally provided with semi-ring pressing sleeve (4) on the outside of ball-and-socket (12), is provided on the inside of semi-ring pressing sleeve (4) and ball-and-socket external screw thread
(14) internal screw thread to match, step is additionally provided on the inside of semi-ring pressing sleeve (4), and step gets back into Cheng Banhuan (3) for hold-down column.
8. the plunger according to claim 7 for having plunger ring, which is characterized in that semi-ring pressing sleeve is provided with one on the outside of (4)
The parallel heavy platform of group, piston shoes main body (2) open up spanner card slot (15) far from the one end of semi-ring pressing sleeve (4).
9. a kind of plunger pump, which is characterized in that use plunger according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821130373.0U CN208518874U (en) | 2018-07-17 | 2018-07-17 | A kind of plunger and plunger pump having plunger ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821130373.0U CN208518874U (en) | 2018-07-17 | 2018-07-17 | A kind of plunger and plunger pump having plunger ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208518874U true CN208518874U (en) | 2019-02-19 |
Family
ID=65335970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821130373.0U Active CN208518874U (en) | 2018-07-17 | 2018-07-17 | A kind of plunger and plunger pump having plunger ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208518874U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953135A (en) * | 2018-07-17 | 2018-12-07 | 陈南南 | A kind of plunger and plunger pump |
| CN111502978A (en) * | 2020-04-15 | 2020-08-07 | 陕西航天动力高科技股份有限公司 | Connecting device for plunger and power end of diaphragm pump |
-
2018
- 2018-07-17 CN CN201821130373.0U patent/CN208518874U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953135A (en) * | 2018-07-17 | 2018-12-07 | 陈南南 | A kind of plunger and plunger pump |
| CN111502978A (en) * | 2020-04-15 | 2020-08-07 | 陕西航天动力高科技股份有限公司 | Connecting device for plunger and power end of diaphragm pump |
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